Method of making milk for infants.



UNITED STATES PATENT OFFIGE.

PETER BERGELL, OF-BERLIN, GERMANY, ASSIGNOR TO THE FIRM or JOI-IAM A. WULFING, 0F BERLIN, GERMANY.

METHOD OF MAKING MILK FOR INFANTS.

No Drawing.

To all whom it may concern:

Be it known that I, PETER BERGELL, a subject of the German Emperor, residing at Berlin, Germany, have invented a certain new and useful Improved Method of Making Milk for Infants, of which the following is a specification.

The subject matter of the present invention is an improved method of making milk for infants which has been enriched in lactalbuminl Heretofore milk for infants has been produced from cows milk by making additions thereto with an intention of obtaining milk which is similar or equal to human milk. However this has not yet been accomplished regarding the contents of lactalbumin. Cows milk is considerably poorer in lactalbumin than human milk but it is much richer in casein. The human milk contains about twice or more than twice the percentage of lactalbumin than cows milk. In order to reduce the large quantity of casein in cows milk, it has been customary to dilute the same with an equal quantity of water. Hereby the percentage of casein was reduced to about one half but, at the same time, the percentage of lactalbumin was likewise reduced, making its percentage still smaller. It is evident from the above that the enrichment of milk for infants with lactalbumin is an important problem in the production of a wholesome food for infants. This problem has heretofore not been solved although it has repeatedly been attempted to supply the existing difference in lactalbumin by adding other albumins which are apparently similar to the lactalbumin, such as for instance, egg-albumin. In dilferentiating the albumins, even those which belong to the same group, according to the present state of the knowledge of the art, such additions can no longer be approved. The lactalbumin of the cows milk only, which is commercially available solely in form of a powder insoluble in water comes into consideration for the desired purpose.

I have discovered that sterile milk for infants which is ready for use and rich in lactalbumin is obtained as follows: The commercial lactalbumin which is insoluble in water is dissolved in sodium hydrate (NaOH), the excess of alkali is removed from the solution thus obtained in any suitable known Specification of Letters Patent.

Patented Sept. 14, 1909.

I manner, a process which can be carried out moreover in such manner that the solution is sterilized at the same time. The solution thus obtained is now mixed with milk for infants prepared by adding water and lactose to the cows milk and, if desired, some cream except that the quantity of water added is not equal to the quantity of the coWs milk but less by a quantity equal to the volume of the lactalbumin solution. Observation shows that the milk character of the liquid is completely preserved when the above method is applied.

In carrying this invention into eifect, I substantially proceed as follows: The sterile lactalbumin is dissolved in a sterile solution of sodum hydrate containing 60 gr of sodium hydrate per kgr. of lactalbumin, the excess of the alkali is removed by dialysis or by neutralization with acids, such as hydrochloric or carbonic acid. The neutral sterile solution of lactalbumin thus obtained is added to the milk for infants which has been prepared in the usual manner from cows milk by adding water, lactose and, if desired, some cream except that the quantity of water added is less than customary and the quantity taken less is equal to the volume of the lactalbumin solution to be added. The addition of the lactalbumin solution may be varied according to the age of the infant in each case corresponding to from 3 to 6 gr of lactalbumin per liter.

1 claim as my invention:

1. The method of producing milk for infants similar to human milk, consisting in making a neutral sterile solution of lactalbumin, preparing milk for infants from cows milk by adding sugar of milk or lactose, and water, and mixing the two solutions together.

2. The method of making milk for infants similar to human milk, consisting in making a neutral sterile solution of lactalbumin, preparing milk for infants from cows milk by adding cream, sugar of milk or lactose, and water, and mixing the two solutions 1 together.

3. The method of producing milk for infants similar to human milk, consisting in making a neutral sterile solution of lactalbumin, preparing milk for infants from cows milk by adding sugar of milk or lactose, and a quantity of water less than the quantity of the coWs milk by the volume ofthe lactalbumin'solution and mixing the tWo solutlons together.

milk for infants from cows milk by adding the usual quantities of sugar of milk or laotose, and a quantity of Water less than the quantity of the cows milk by the volume of the lactalbumin solution, and mixing the two solutions together.

The method of producing neutral sterile milk for infants containing a percentage of lactalbuinin equal to thato'f thehuman milk, consisting in dissolving lactalbumin in a sterile solution of sodiumliydrate, removing the excess of the'alkali by dialysis, preparof milk or lactose, and a quantity of Water less than the quantity of the cows milk by the volume of the lactalbumin solution, and

mixing the two solutions together] j In testimony whereof, I afiiX my signature in the presence of two Witnesses.

lVitnesses HENR HASPER, lVoLDnMAR HAUPT.

ing separately milk for infants from coWls milk by adding the usual quantities ofsugar PETER B RGE L; 

